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| pollen Microspores of seed-producing plants. Each pollen grain contains a much-reduced male gametophyte. Pollen grains are transferred by wind, water, birds or other animals | |||
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| pollen raw materials | |||
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polen : 20 phrases in 8 subjects |
| Agriculture | 2 |
| Botany | 2 |
| General | 2 |
| Genetics | 1 |
| Health care | 2 |
| Life sciences | 2 |
| Medical | 2 |
| Natural sciences | 7 |
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